How can i get Text of GridComboBoxColumn?

[Diyari]

Hello, I have a GridComboBoxColumn with IsEditable set to true and I want to handle the entered text.

XAML:

<syncfusion:SfDataGrid

x:Name="LessonsDataGrid"

AddNewRowPosition="Bottom"

AllowEditing="True"

EditTrigger="OnDoubleTap"

ItemsSource="{Binding EmployeeLessons}"

NavigationMode="Cell"

SelectionMode="Extended">

<syncfusion:SfDataGrid.Columns>

<syncfusion:GridComboBoxColumn

DisplayMemberPath="Lesson"

HeaderText="Lesson"

IsEditable="True"

ItemsSource="{Binding Lessons}"

MappingName="Lesson"

SelectedValuePath="Lesson" />

<syncfusion:GridComboBoxColumn

DisplayMemberPath="Level"

HeaderText="Level"

IsEditable="True"

ItemsSource="{Binding Levels}"

MappingName="Level"

SelectedValuePath="Level" />

<syncfusion:GridComboBoxColumn

DisplayMemberPath="Class"

HeaderText="Class"

IsEditable="True"

ItemsSource="{Binding Classes}"

MappingName="Class"

SelectedValuePath="Class" />

</syncfusion:SfDataGrid.Columns>

</syncfusion:SfDataGrid>

[Vijayarasan Sivanandham]

Hi Diyari,

Your requirement to get text of GridComboBoxColumn in SfDataGrid can be achieved by overriding the OnEditElementLoaded method in GridCellComboBoxRenderer and customize the TextChanged event. Refer to the below code snippet,

//Remove existing ComboBox Renderer

LessonsDataGrid.CellRenderers.Remove("ComboBox");

//Add customized ComboBox Renderer

LessonsDataGrid.CellRenderers.Add("ComboBox", new GridCellComboBoxRendererExt());

//GridCellComboBoxRenderer customization

public class GridCellComboBoxRendererExt : GridCellComboBoxRenderer

{

    protected override void OnEditElementLoaded(object sender, RoutedEventArgs e)

    {

        base.OnEditElementLoaded(sender, e);

        var combobox = ((ComboBox)sender);

        if (combobox != null)

        {

            TextBox comboTextBox = (TextBox)GridUtil.FindDescendantChildByType(combobox, typeof(TextBox));

            if (comboTextBox != null)

                //Event subscription

                comboTextBox.TextChanged += OnComboTextBoxTextChanged;

        }

    }

 

    //Event customization

    private void OnComboTextBoxTextChanged(object sender, TextChangedEventArgs e)

    {

        //Here get the TextBox

        var textBox = (e.OriginalSource as TextBox);

 

        if(textBox != null)

        {

            //Here get the entered text in ComboBox when editing

            var text = textBox.Text;

            Console.WriteLine("Get EnteredText is : " + text);

        }

    }

}

UG Link: https://help.syncfusion.com/wpf/datagrid/column-types#customize-column-renderer

https://help.syncfusion.com/wpf/datagrid/column-types#gridcomboboxcolumn

Find the sample in the attachment.

Regards,

Vijayarasan S

If this post is helpful, please consider Accepting it as the solution so that other members can locate it more quickly.

Attachment: Sample_d5e433f.zip

[Diyari]

Thank you sir! It's exactly what I wanted.